Cocksure

adj, slang

adj, slang ·Moderate ·College level

Definitions

Adjective
  1. 1
    Too confident; overconfident. informal

    "I thought myself cocksure of his horse, which he readily promis'd me."

Adjective
  1. 1
    marked by excessive confidence wordnet

Synonyms

All synonyms
overconfidentarrogantassuredbrashcertaincocky

Example

More examples

"The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt."

Etymology

Probably from cock + sure, early 16th c.

More for "cocksure"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.